High-dimensional entangled states are promising candidates for increasing the security and
encoding capacity of quantum systems. While it is possible to witness and set bounds for the …

We experimentally investigate the properties of hyperentangled states displaying
simultaneous entanglement in multiple degrees of freedom and find that Bell tests beyond …

We demonstrate an experimental test of the Clauser–Horne–Shimony–Holt (CHSH) Bell
inequality which seemingly exhibits correlations beyond the limits imposed by quantum …

Quantum correlations can be stronger than anything achieved by classical systems, yet they
are not reaching the limit imposed by relativity. The principle of information causality offers a …

Quantum communication and information processing with photons achieves the overarching
goals of transferring, encrypting, and processing digital information using machinery …

Modern cryptography today is required to protect sensitive and important data from
attackers. With the dawn of quantum computing, these classical cryptography methods are …

We propose a practical quantum cryptographic scheme which combines high information
capacity, such as provided by high-dimensional quantum entanglement, with the simplicity …

Technology has come a long way since the birth of quantum mechanics. The science has
led to computers, and now, the scientists are pushing the fundamentals further to eventually …

High-dimensional entangled states are promising candidates for increasing the security and
encoding capacity of quantum systems. While it is possible to witness and set bounds for the …

Photons entangled in the orbital angular momentum (OAM) degree of freedom are
promising candidates for accessing high-dimensional Hilbert spaces with the benefit of …